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Expired Canadian patentCanada

Sexual sterilization clip

CA 1267342 C · Owner: Casey Medical Products Limited · Inventors: Casey, Donn

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A surgical clip of plastics material for performing sexual sterilization comprises two jaws 12,14 hinged to move from an open position to the closed position shown, in which a Fallopian tube 18 is occluded. A catch mechanism 20 engages when the jaws reach their closed position, and locks the jaws closed. The location of the catch mechanism 20 in the vicinity of the hinge 16 ensures that it does not contact the vulnerable mesosalpinx 58 thus reducing the, risk of bleeding. Interdigitated teeth 26,36 and a curved springy, tongue 54 prevent the tube 18 escaping from the clip as the jaws close. The teeth are rounded and are loosely interdigitated to reduce the risk of damage to the mesosalpinx …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted April 3, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 13, 1987
GrantedApril 3, 1990
Term endedApril 3, 2007
Patent numberCA 1267342 C
Classification (IPC)A61B17/12 +1 more

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedMay 13, 1987Patent grantedApril 3, 1990Term endedApril 3, 2007

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.